Scosche Rhythm+ Heart Rate Monitor

Arm Band Monitors Your Heart Rate

Scosche RHYTHM +
Scosche RHYTHM +. Courtesy of Pricegrabber

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The Scosche Rhythm+ Heart Rate Monitor sets you free from the chest strap. You wear this heart rate monitor as an armband. It detects your heart rate with green and yellow optical sensors. The dual sensors allow it to work over a range of skin tones, while many smart watches use only green LED and may not work well on dark or tattooed skin.

You can view and use the heart rate data with almost any Bluetooth Smart or ANT+ app, device, or exercise equipment.

It has no display or app of its own but you can pick up its signal with most fitness apps and devices. This makes it a very versatile sensor. It replaces the original Scosche Rhythm, which worked only with its own app.

It is a simple-to-use device with a single button. Like a chest strap, it has no display of its own, just an on/off switch and indicator light.


  • Use any app or display that connects via Bluetooth Smart or ANT+. You choose what app you like best, including Endomondo, Wahoo Fitness, MapMyWalk, and MiCoach. If you have a heart rate monitor watch or fitness band (such as a Garmin vivofit or vivosmart) that connects with a chest strap, it will likely connect with the Scosche Rhythm+.
  • Simple operation
  • No chest strap - less risk of chafing and easier to put on and take off in public.
  • No more stopping to take your pulse


  • It doesn't come with a display, so you will need to get one if you want feedback during your workout and what heart rate zone you are in. The comparable Mio Link has a color-changing light to indicate which of five heart rate zones you are in, and it also transmits data via both Bluetooth and ANT+.
  • The optical heart rate sensor may not be as accurate as a chest strap for all activities.
  • Not fully waterproof for diving and swimming.

Setting Up the Scosche Rhythm+
The Rhythm+ has a rechargeable battery with an 8-hour life. It comes with a custom USB recharging cradle to plug into a USB power source.

A full charge can take up to two hours, with it flashing a red light while charging and a blue light indicating full charge.

The Rhythm+ comes with both a small and large band made of soft fabric with lots of breathing pores. Choose the one that is right for wearing snugly on the upper portion of your forearm, below the elbow. It closes with hook-and-loop.

Pair it with Bluetooth Smart fitness apps by ensuring your mobile device has Bluetooth set to ON and finding the sensor settings within the app you want to pair. Press the multifunction button to turn on the device and it should pair. Similarly, to pair with sports watches and fitness equipment by either ANT+ ofr Bluetooth Smart, find the menu to add an HR sensor and turn on the Rhythm+.

Alternating red/blue light on the Rhythm+ indicates it's waiting for a connection, while three blue blinks indicates it is paired.

Using the Scosche Rhythm+

The band should be worn on the upper portion of your forearm, below the elbow, where it will get the most stable readings.

It can be worn with the sensor on the inside or on the top of the forearm. You want it to be in a place where wrist movements won't disturb it.

Press the multi-function button to turn it on and check your linked display or app and you should see your heart rate. A slow purple blink indicates the sensor is working normally.

The broacast range is up to 100 feet, so you can leave your mobile phone on the sideline at the gym while you workout if you are simply recording your workout and don't want to see what your heart rate is during your workout.

The Rhythm+ is sweatproof and waterproof to 1 meter (3 feet).

When your workout is done, press and hold the button for three seconds to turn it off.

They recommend wiping the armband to clean it with handsoap and only wiping the sesor lens itself with a clean soft cloth.

Bottom Line on Scosche RHYTHM+

The RHYTHM+ gave me consistent heart rate readings with no fuss. I like the convenience of slipping on an arm strap as opposed to a chest strap. You don't have to wet the contacts as you do with a chest strap sensor. It is so simple to use that the instructions are only 2 small pages with illustrations. Oddly, I couldn't find any user manuals or FAQs on the Scosche web site.

If you have darker skin or tattoos, you may discover that smart watches and fitness watches that use LED lights do not work well for you, as they use only green LED sensors. The Scosche RHYTHM+ should work better. The Mio Link is a comparable armband heart rate monitor, but it only uses green LED sensors.

The previous model, the Rhythm, model RTHM1.5 is no long available from Scosche but you may confuse it as retailers close out remaining stock. It is yellow, has three buttons and only connects to its own app via Bluetooth.

As of 2015, many devices are integrating wrist-based LED heart rate sensing, including the Fitbit Surge and Fitbit Charge HR and the Apple Watch. But biometric expert Steven LeBoeuf says the Mio Alpha and the Scosche Rhythm+ are the most accurate for wrist-based heart rate sensing.

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